Advertisement
Vacuum
interrupter
1 2 .
(1) Electrical service lift?
The electrical servic:e life of the vacuum interrupter is defined by the electrode wear the
number of open/close operations (mechanical life).
To determine the electrode wear, measure the gap between the lever and washer
(dimension A) in a closed start , as shown in Figure8. With the vacuum interrupter
closed, if a contact 'wear gauge or a 1 .Omm thickness gauge cannot be inserted ,
this means the end of life is reached.
For the components listed below, replacement or detailed inspection and cleaning
are recommended after the indicated number of operations.
Auxili
Drive
Movs
Hence, parts should be replaced around electrical service life operations.
Table 7
Part:
Table 8 Electrical service life
W A S H E R (MB)
Fig.8
Parts to be inspected
Gap/wipe standard value
17
Advertisement
